Transport Drum Body Color Gray Body Material Gauge 16 ga Body Thickness 1.5 mm Bottom Material Gauge 16 ga Closing Ring Material Not Applicable Cover Color Gray Cover Material 304 Stainless Steel Drum Closure Not Applicable Drum Head Type Closed Head Interior Lining Unlined/No Interior Coating Number of Bung Holes 2 Overall Height 35 1/4 in Top Material Gauge 16 ga Top Outside Diameter 23 1/2 in UN Rating Liquids 1A1/X1.8/550 UN Rating Solids Not Rated Volume Capacity 55 gal